Every instrument, accounted for
One register for every instrument you own. Know where it is, who has it, when it was last calibrated, and what it's costing you.
Free plan · 25 instruments · Import from spreadsheet
Instrument list with filters — screenshot coming soon
The problem with spreadsheets and generic tools
Generic asset tools don't understand calibration. IT asset management platforms like Snipe-IT or Asset Panda are designed for laptops and monitors. They track location and ownership, but they don't understand calibration intervals, measurement uncertainty, traceability chains, or the difference between a routine service and an accreditation-critical calibration. You end up building workarounds on a system that wasn't designed for your workflow.
Spreadsheets lose version control when 3 people edit them. One copy on the shared drive, one on somebody's desktop, one emailed last week. Nobody knows which version has the latest instrument transfers. When conflicts happen, data gets lost — and you don't find out until an audit.
Nobody knows where instrument #4782 is right now. Is it in the calibration lab? Did someone take it to the production floor? Is it out for external calibration? Without a real-time system, you're asking around and hoping someone remembers.
Your instruments aren't office chairs. They need more than a barcode.
Core capabilities
Instrument Registry
Add instruments manually, import from spreadsheet, or scan QR codes. Custom fields for any metadata your workflow needs — measurement range, serial numbers, cost centers, accreditation scope references.
Location & Room Tracking
Organize by site, building, room, and shelf. Move instruments between locations with full history. Know exactly where every instrument is, without asking around.
Custody & Checkout
Know who has what. Check out instruments to people or departments. Full chain of custody with timestamps. When something's missing, you know the last person who had it.
QR/Barcode Scanning
Print labels, scan to look up any instrument instantly. Mobile-friendly for warehouse and field use. No app required — works in your browser with your phone's camera.
Lifecycle Management
Track from procurement to retirement. Record warranty dates, depreciation schedules, and replacement planning. Know when an instrument is approaching end-of-life before it becomes a problem.
Cost Tracking
Total cost of ownership per instrument. Calibration costs, maintenance costs, purchase price, cumulative spend. Know which instruments cost more to maintain than to replace.
More than inventory — calibration built in
Most inventory tools stop at "where is it." ToolLedger also tells you "is it safe to use."
Calibration due dates visible in the instrument list — see at a glance which instruments are current, approaching, or overdue without opening individual records.
Automatic reminders before instruments go overdue — email notifications at configurable intervals so nothing slips through the cracks.
Audit-ready calibration history per instrument — full event log with certificates, technician notes, and pass/fail results.
Start with inventory. Add calibration tracking when you're ready. Same instrument, same record, no migration.
Learn about calibration management →Import your existing data in minutes
Bring your existing instrument list. We'll map the columns for you.
Upload CSV or XLSX
Map your columns
Review & validate
Import
Don't have a spreadsheet yet? Start with our free maintenance log template and import it when you're ready.
Who uses this
Workshop owners tracking 20 expensive tools
You don't need enterprise software — you need to know where your Fluke 87V went and whether its calibration is still current.
Lab managers overseeing 300 instruments across 3 sites
You need a single source of truth, not three spreadsheets and a hope that someone updated them.
QA teams that need equipment status at a glance
Filter by status, location, department, or calibration due date. Get the answer in seconds, not after a round of emails.
Anyone who's ever asked "where did that Fluke go?"
If you've spent more than 10 minutes looking for an instrument, you already know you need a better system.
Start free, upgrade when you're ready
Start free with 25 instruments and 5 team members. Upgrade to Professional ($89/mo) when you're ready for 500 instruments, advanced features, and priority support. No per-instrument charges, no hidden fees.